39 matches found
CVE-2026-40369
これは、VoidSec氏によるCVE-2026-40369の公開技術解析を書き直し、要約したものです。さらに、自身の理解のためにフローチャートと防御的メモを追加しています。 核となる技術的詳細はすべて彼の研究に基づいています。私はこのバグに対して独立したリバースエンジニアリングは行っていません。 CVE-2026-40369：12バイトWindowsカーネルインクリメントプリミティブの防御的分析 CVE-2026-40369 の防御的な技術分析です。これは、NtQuerySystemInformation（クラス 0xFD /...
UBUNTU-CVE-2026-98145
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: reject a command chain that carries no commands A chain whose commandcount is zero passes the payload length check, because structsizepayload, data, 0 is just the header. The fill loop then does not run, so offset...
CVE-2026-98145
The Linux kernel contains a vulnerability in the accel/amdxdna driver where a command chain with a command_count of zero improperly passes payload length checks. Because the struct_size calculation only accounts for the header, the fill loop is skipped, resulting in the submission of a zero-lengt...
CVE-2026-98145 accel/amdxdna: reject a command chain that carries no commands
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: reject a command chain that carries no commands A chain whose commandcount is zero passes the payload length check, because structsizepayload, data, 0 is just the header. The fill loop then does not run, so offset...
CVE-2026-98145: Undefined Security Weakness
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: reject a command chain that carries no commands A chain whose commandcount is zero passes the payload length check, because structsizepayload, data, 0 is just the header. The fill loop then does not run, so offset...
CVE-2026-80652
A flaw was found in the Linux kernel's Cryptographic Co-processor CCP driver. A local attacker could trigger a kernel crash, leading to a denial of service DoS, by providing a zero-length certificate chain buffer during a Platform Dynamic Hardware PDH export operation. This issue specifically...
libevent: Libevent: Memory corruption due to use-after-free
A flaw was found in Libevent, an event notification library. A use-after-free vulnerability exists in the evbufferaddbufferreference function when it processes an output buffer with a zero length. This can lead to a dangling pointer, which an attacker could exploit to cause memory corruption or...
SUSE CVE-2026-80652
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...
CVE-2026-80652
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...
UBUNTU-CVE-2026-80652
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...
CVE-2026-80652 crypto: ccp - Treat zero-length cert chain as query for blob lengths
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...
EUVD-2026-67528
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...
CVE-2026-80652
CVE-2026-80652 affects the Linux kernel 's AMD SEV/CCP driver (drivers/crypto/ccp/sev-dev.c ). When handling a PDH export, a zero-length userspace cert chain buffer is not treated as a blob-length query, causing a BUG_ON() crash at arch/x86/mm/physaddr.c due to a physical-address lookup on ZERO_S...
PT-2026-82952
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the crypto CCP module when handling a PDH export. The system fails to properly account for a zero-length userspace cert chain buffer, which should be treated as a...
CVE-2026-63381
A flaw was found in Libevent, an event notification library. A use-after-free vulnerability exists in the evbufferaddbufferreference function when it processes an output buffer with a zero length. This can lead to a dangling pointer, which an attacker could exploit to cause memory corruption or...
USN-8531-1 libexif vulnerabilities
It was discovered that libexif had an integer overflow in its MakerNote decoder when called with a zero-length buffer. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. CVE-2026-32775 It was discovered that libexif had an integer overflow in i...
kernel: io_uring/rsrc: reject zero-length fixed buffer import
A flaw was found in the Linux kernel's iouring subsystem. A local attacker can exploit a vulnerability in the ioimportfixed function by importing a zero-length fixed buffer. This can lead to an out-of-bounds read from slab memory, potentially resulting in information disclosure or a denial of...
Exploit for Untrusted Pointer Dereference in Microsoft
CVE-2026-40369: Defensive Analysis of the 12-Byte Windows Kern...